|Round|Round|Circuit|Date|Pole Position|Fastest Lap|Winning Driver|Winning Team|Winning Privateer|
|---|---|---|---|---|---|---|---|---|
|1|R1|Mantorp Park|10 May|Mattias Ekström|Fredrik Ekblom|Mats Lindén|Kristoffersson Motorsport|Richard Göransson|
|1|R2|Mantorp Park|10 May||Peggen Andersson|Fredrik Ekblom|BMW Dealer Team|Pontus Mörth|
|2|R3|Karlskoga-Gelleråsen|31 May|Jan Nilsson|Jan Nilsson|Jan Nilsson|Flash Engineering|Pontus Mörth|
|2|R4|Karlskoga-Gelleråsen|31 May||Fredrik Ekblom|Peggen Andersson|BMW Dealer Team|Pontus Mörth|
|3|R5|Anderstorp|28 June|Mattias Ekström|Fredrik Ekblom|Jan Nilsson|Flash Engineering|Pontus Mörth|
|3|R6|Anderstorp|28 June||Peggen Andersson|Peggen Andersson|BMW Dealer Team|Georg Bakajev|
|4|R7|Falkenberg|9 July|Jens Edman|Jens Edman|Jan Nilsson|Flash Engineering|Pontus Mörth|
|4|R8|Falkenberg|9 July||Mattias Ekström|Jens Edman|Flash Engineering|Pontus Mörth|
|5|R9|Ring Knutstorp|6 September|Fredrik Ekblom|Fredrik Ekblom|Fredrik Ekblom|BMW Dealer Team|Pontus Mörth|
|5|R10|Ring Knutstorp|6 September||Mats Lindén|Jan Nilsson|Flash Engineering|Georg Bakajev|
|6|R11|Mantorp Park|27 September|Tommy Kristoffersson|Fredrik Ekblom|Fredrik Ekblom|BMW Dealer Team|Pontus Mörth|
|6|R12|Mantorp Park|27 September||Peggen Andersson|Jan Nilsson|Flash Engineering|Pontus Mörth|

Question: how many races has jan nilsson won?
Answer: 5